/* --- BoxOver ---
/* --- v 2.1 17th June 2006
By Oliver Bryant with help of Matthew Tagg
http://boxover.swazz.org */
if (typeof document.attachEvent!='undefined') {
   window.attachEvent('onload',init);
   document.attachEvent('onmousemove',moveMouse);
   document.attachEvent('onclick',checkMove); }
else {
   window.addEventListener('load',init,false);
   document.addEventListener('mousemove',moveMouse,false);
   document.addEventListener('click',checkMove,false);
}
var oDv=document.createElement("div");
var dvHdr=document.createElement("div");
var dvBdy=document.createElement("div");
var windowlock,boxMove,fixposx,fixposy,lockX,lockY,fixx,fixy,ox,oy,boxLeft,boxRight,boxTop,boxBottom,evt,mouseX,mouseY,boxOpen,totalScrollTop,totalScrollLeft;
boxOpen=false;
ox=10;
oy=10;
lockX=0;
lockY=0;
function init() {
 oDv.appendChild(dvHdr);
 oDv.appendChild(dvBdy);
 oDv.style.position="absolute";
 oDv.style.visibility='hidden';
 document.body.appendChild(oDv); 
}
function defHdrStyle() {
 dvHdr.innerHTML='<img  style="vertical-align:middle"  src="../images/question_mark.png">&nbsp;&nbsp;'+dvHdr.innerHTML;
 dvHdr.style.fontWeight='bold';
 dvHdr.style.width='150px';
 dvHdr.style.fontFamily='arial';
 dvHdr.style.border='1px solid #A5CFE9';
 //dvHdr.style.padding='3';
 //dvHdr.style.fontSize='11';
 dvHdr.style.color='#4B7A98';
 dvHdr.style.background='#D5EBF9';
 //dvHdr.style.filter='alpha(opacity=85)'; // IE
 dvHdr.style.opacity='0.85'; // FF
}
function defBdyStyle() {
 dvBdy.style.borderBottom='1px solid #A5CFE9';
 dvBdy.style.borderLeft='1px solid #A5CFE9';
 dvBdy.style.borderRight='1px solid #A5CFE9';
 dvBdy.style.width='150px';
 dvBdy.style.fontFamily='arial';
 //dvBdy.style.fontSize='11';
 //dvBdy.style.padding='3';
 dvBdy.style.color='#1B4966';
 dvBdy.style.background='#FFFFFF';
 //dvBdy.style.filter='alpha(opacity=85)'; // IE
 dvBdy.style.opacity='0.85'; // FF
}
function checkElemBO(txt) {
if (!txt || typeof(txt) != 'string') return false;
if ((txt.indexOf('header')>-1)&&(txt.indexOf('body')>-1)&&(txt.indexOf('[')>-1)&&(txt.indexOf('[')>-1)) 
   return true;
else
   return false;
}
function scanBO(curNode) {
   if (checkElemBO(curNode.title)) {
         curNode.boHDR=getParam('header',curNode.title);
         curNode.boBDY=getParam('body',curNode.title);
   curNode.boCSSBDY=getParam('cssbody',curNode.title);   
   curNode.boCSSHDR=getParam('cssheader',curNode.title);
   curNode.IEbugfix=(getParam('hideselects',curNode.title)=='on')?true:false;
   curNode.fixX=parseInt(getParam('fixedrelx',curNode.title));
   curNode.fixY=parseInt(getParam('fixedrely',curNode.title));
   curNode.absX=parseInt(getParam('fixedabsx',curNode.title));
   curNode.absY=parseInt(getParam('fixedabsy',curNode.title));
   curNode.offY=(getParam('offsety',curNode.title)!='')?parseInt(getParam('offsety',curNode.title)):10;
   curNode.offX=(getParam('offsetx',curNode.title)!='')?parseInt(getParam('offsetx',curNode.title)):10;
   curNode.fade=(getParam('fade',curNode.title)=='on')?true:false;
   curNode.fadespeed=(getParam('fadespeed',curNode.title)!='')?getParam('fadespeed',curNode.title):0.04;
   curNode.delay=(getParam('delay',curNode.title)!='')?parseInt(getParam('delay',curNode.title)):0;
   if (getParam('requireclick',curNode.title)=='on') {
    curNode.requireclick=true;
    document.all?curNode.attachEvent('onclick',showHideBox):curNode.addEventListener('click',showHideBox,false);
    document.all?curNode.attachEvent('onmouseover',hideBox):curNode.addEventListener('mouseover',hideBox,false);
   }
   else {// Note : if requireclick is on the stop clicks are ignored      
      if (getParam('doubleclickstop',curNode.title)!='off') {
       document.all?curNode.attachEvent('ondblclick',pauseBox):curNode.addEventListener('dblclick',pauseBox,false);
      } 
      if (getParam('singleclickstop',curNode.title)=='on') {
       document.all?curNode.attachEvent('onclick',pauseBox):curNode.addEventListener('click',pauseBox,false);
      }
     }
   curNode.windowLock=getParam('windowlock',curNode.title).toLowerCase()=='off'?false:true;
   curNode.title='';
   curNode.hasbox=1;
    }
    else
       curNode.hasbox=2;   
}

function getParam(param,list) {
 var reg = new RegExp('([^a-zA-Z]' + param + '|^' + param + ')\\s*=\\s*\\[\\s*(((\\[\\[)|(\\]\\])|([^\\]\\[]))*)\\s*\\]');
 var res = reg.exec(list);
 var returnvar;
 if(res)
  return res[2].replace('[[','[').replace(']]',']');
 else
  return '';
}
function Left(elem){ 
 var x=0;
 if (elem.calcLeft)
  return elem.calcLeft;
 var oElem=elem;
 while(elem){
   if ((elem.currentStyle)&& (!isNaN(parseInt(elem.currentStyle.borderLeftWidth)))&&(x!=0))
    x+=parseInt(elem.currentStyle.borderLeftWidth);
   x+=elem.offsetLeft;
   elem=elem.offsetParent;
   } 
 oElem.calcLeft=x;
 return x;
 }
function Top(elem){
  var x=0;
  if (elem.calcTop)
   return elem.calcTop;
  var oElem=elem;
  while(elem){  
    if ((elem.currentStyle)&& (!isNaN(parseInt(elem.currentStyle.borderTopWidth)))&&(x!=0))
    x+=parseInt(elem.currentStyle.borderTopWidth); 
   x+=elem.offsetTop;
          elem=elem.offsetParent;
   } 
   oElem.calcTop=x;
   return x;
   
}
var ah,ab;
function applyStyles() {
 if(ab)
  oDv.removeChild(dvBdy);
 if (ah)
  oDv.removeChild(dvHdr);
 dvHdr=document.createElement("div");
 dvBdy=document.createElement("div");
 CBE.boCSSBDY?dvBdy.className=CBE.boCSSBDY:defBdyStyle();
 CBE.boCSSHDR?dvHdr.className=CBE.boCSSHDR:defHdrStyle();
 dvHdr.innerHTML=CBE.boHDR;
 dvBdy.innerHTML=CBE.boBDY;
 ah=false;
 ab=false;
 if (CBE.boHDR!='') {  
  oDv.appendChild(dvHdr);
  ah=true;
 } 
 if (CBE.boBDY!=''){
  oDv.appendChild(dvBdy);
  ab=true;
 } 
}
var CSE,iterElem,LSE,CBE,LBE, totalScrollLeft, totalScrollTop, width, height ;
var ini=false;
// Customised function for inner window dimension
function SHW() {
   if (document.body && (document.body.clientWidth !=0)) {
      width=document.body.clientWidth;
      height=document.body.clientHeight;
   }
   if (document.documentElement && (document.documentElement.clientWidth!=0) && (document.body.clientWidth + 20 >= document.documentElement.clientWidth)) {
      width=document.documentElement.clientWidth;   
      height=document.documentElement.clientHeight;   
   }   
   return [width,height];
}

var ID=null;
function moveMouse(e) {
   //boxMove=true;
 e?evt=e:evt=event;
 
 CSE=evt.target?evt.target:evt.srcElement;
 
 if (!CSE.hasbox) {
    // Note we need to scan up DOM here, some elements like TR don't get triggered as srcElement
    iElem=CSE;
    while ((iElem.parentNode) && (!iElem.hasbox)) {
       scanBO(iElem);
       iElem=iElem.parentNode;
    }    
 }
 
 if ((CSE!=LSE)&&(!isChild(CSE,dvHdr))&&(!isChild(CSE,dvBdy))){  
    if (!CSE.boxItem) {
   iterElem=CSE;
   while ((iterElem.hasbox==2)&&(iterElem.parentNode))
     iterElem=iterElem.parentNode; 
   CSE.boxItem=iterElem;
   }
  iterElem=CSE.boxItem;
  if (CSE.boxItem&&(CSE.boxItem.hasbox==1))  {
   LBE=CBE;
   CBE=iterElem;
   if (CBE!=LBE) {
    applyStyles();
    if (!CBE.requireclick)
     if (CBE.fade) {
      if (ID!=null)
       clearTimeout(ID);
      ID=setTimeout("fadeIn("+CBE.fadespeed+")",CBE.delay);
     }
     else {
      if (ID!=null)
       clearTimeout(ID);
      COL=1;
      ID=setTimeout("oDv.style.visibility='visible';ID=null;",CBE.delay);      
     }
    if (CBE.IEbugfix) {hideSelects();} 
    fixposx=!isNaN(CBE.fixX)?Left(CBE)+CBE.fixX:CBE.absX;
    fixposy=!isNaN(CBE.fixY)?Top(CBE)+CBE.fixY:CBE.absY;   
    lockX=0;
    lockY=0;
    boxMove=true;
    ox=CBE.offX?CBE.offX:10;
    oy=CBE.offY?CBE.offY:10;
   }
  }
  else if (!isChild(CSE,dvHdr) && !isChild(CSE,dvBdy) && (boxMove)) {
   // The conditional here fixes flickering between tables cells.
   if ((!isChild(CBE,CSE)) || (CSE.tagName!='TABLE')) {      
      CBE=null;
      if (ID!=null)
       clearTimeout(ID);
      fadeOut();
      showSelects();
   }
  }
  LSE=CSE;
 }
 else if (((isChild(CSE,dvHdr) || isChild(CSE,dvBdy))&&(boxMove))) {
  totalScrollLeft=0;
  totalScrollTop=0;
  
  iterElem=CSE;
  while(iterElem) {
   if(!isNaN(parseInt(iterElem.scrollTop)))
    totalScrollTop+=parseInt(iterElem.scrollTop);
   if(!isNaN(parseInt(iterElem.scrollLeft)))
    totalScrollLeft+=parseInt(iterElem.scrollLeft);
   iterElem=iterElem.parentNode;   
  }
  if (CBE!=null) {
   boxLeft=Left(CBE)-totalScrollLeft;
   boxRight=parseInt(Left(CBE)+CBE.offsetWidth)-totalScrollLeft;
   boxTop=Top(CBE)-totalScrollTop;
   boxBottom=parseInt(Top(CBE)+CBE.offsetHeight)-totalScrollTop;
   doCheck();
  }
 }
 
 if (boxMove&&CBE) {
  // This added to alleviate bug in IE6 w.r.t DOCTYPE
  bodyScrollTop=document.documentElement&&document.documentElement.scrollTop?document.documentElement.scrollTop:document.body.scrollTop;
  bodyScrollLet=document.documentElement&&document.documentElement.scrollLeft?document.documentElement.scrollLeft:document.body.scrollLeft;
  mouseX=evt.pageX?evt.pageX-bodyScrollLet:evt.clientX-document.body.clientLeft;
  mouseY=evt.pageY?evt.pageY-bodyScrollTop:evt.clientY-document.body.clientTop;
  if ((CBE)&&(CBE.windowLock)) {
   mouseY < -oy?lockY=-mouseY-oy:lockY=0;
   mouseX < -ox?lockX=-mouseX-ox:lockX=0;
   mouseY > (SHW()[1]-oDv.offsetHeight-oy)?lockY=-mouseY+SHW()[1]-oDv.offsetHeight-oy:lockY=lockY;
   mouseX > (SHW()[0]-dvBdy.offsetWidth-ox)?lockX=-mouseX-ox+SHW()[0]-dvBdy.offsetWidth:lockX=lockX;   
  }
  oDv.style.left=((fixposx)||(fixposx==0))?fixposx:bodyScrollLet+mouseX+ox+lockX+"px";
  oDv.style.top=((fixposy)||(fixposy==0))?fixposy:bodyScrollTop+mouseY+oy+lockY+"px";  
  
 }
}
function doCheck() { 
 if (   (mouseX < boxLeft)    ||     (mouseX >boxRight)     || (mouseY < boxTop) || (mouseY > boxBottom)) {
  if (!CBE.requireclick)
   fadeOut();
  if (CBE.IEbugfix) {showSelects();}
  CBE=null;
 }
}
function pauseBox(e) {
   e?evt=e:evt=event;
 boxMove=false;
 evt.cancelBubble=true;
}
function showHideBox(e) {
 oDv.style.visibility=(oDv.style.visibility!='visible')?'visible':'hidden';
}
function hideBox(e) {
 oDv.style.visibility='hidden';
}
var COL=0;
var stopfade=false;
function fadeIn(fs) {
  ID=null;
  COL=0;
  oDv.style.visibility='visible';
  fadeIn2(fs);
}
function fadeIn2(fs) {
  COL=COL+fs;
  COL=(COL>1)?1:COL;
  oDv.style.filter='alpha(opacity='+parseInt(100*COL)+')';
  oDv.style.opacity=COL;
  if (COL<1)
   setTimeout("fadeIn2("+fs+")",20);  
}

function fadeOut() {
 oDv.style.visibility='hidden';
 
}
function isChild(s,d) {
 while(s) {
  if (s==d) 
   return true;
  s=s.parentNode;
 }
 return false;
}
var cSrc;
function checkMove(e) {
 e?evt=e:evt=event;
 cSrc=evt.target?evt.target:evt.srcElement;
 if ((!boxMove)&&(!isChild(cSrc,oDv))) {
  fadeOut();
  if (CBE&&CBE.IEbugfix) {showSelects();}
  boxMove=true;
  CBE=null;
 }
}
function showSelects(){
   var elements = document.getElementsByTagName("select");
   for (i=0;i< elements.length;i++){
      elements[i].style.visibility='visible';
   }
}
function hideSelects(){
   var elements = document.getElementsByTagName("select");
   for (i=0;i< elements.length;i++){
   elements[i].style.visibility='hidden';
   }
}
